Popular recipes tagged "demo" but not "audio"

A pseudo-echo, (or printf), function for any Python version. (Python)

2017-01-20T22:17:23-08:00

Python recipe 580750 by Barry Walker (amiga, apple, demo, echo, fs_uae, linux, printf, unix, windows, winuae).

A simple example of having a pseudo-echo using sys.stdout.write...

This gives exactly the same results from Python Versions, 1.4.0, 2.0.1, 2.5.6, 2.6.9, 3.4.3 and 3.5.2 on various platforms including the classic AMIGA A1200.

Enjoy finding simple solutions to often very difficult problems...

Bazza.

Simple Text Mode Digital Oscilloscope Graphics DEMO. (Python)

2014-01-21T19:07:49-08:00

Python recipe 578812 by Barry Walker (apple, demo, graphics, linux, macbook_pro).

This is a DEMO to switch a *NIX terminal from text to _graphics_ mode on the fly.

The graphics characters are limited to lowercase 'a' through 'z' and this DEMO just prints a small subset to see what a fun, kids level, 8 channel Logic-Analyser/Digital-Oscilloscope might look like.

This may not work in every *NIX style terminal but does work on default terminals using bash on OSX 10.7.5, PCLinuxOS 2009 and Debian Linux 6.0.x.

Tested on Python 2.5.x to 3.3.2 on the above platforms... (It might work on earlier versions of Python but untested.)

Enjoy finding simple solutions to often very difficult problems...

Bazza...

A DEMO to show how to write text into the Python terminal Title Bar... (Python)

2013-09-17T17:55:53-07:00

Python recipe 578662 by Barry Walker (apple, bar, cygwin, demo, linux, macbook_pro, title, title_bar).

This DEMO is show how to write some text of your choice into the Title Bar of the Python terminal window.

Firstly it imports "time" just for this demo so that a simple time delay can be generated. Next the Python terminal window is written to for the 5 seconds of delay; see code. And finally the Title Bar is restored to normal...

A snapshot image can be seen here:-

http://wisecracker.host22.com/public/Title_Bar.jpg

Bazza...

Design by contract on python vanilla (Python)

2013-11-05T20:50:30-08:00

Python recipe 578767 by Alan Cristhian Ruiz (demo, design_pattern, productivity). Revision 2.

The code below is an example that shows that we can do design by contract in python without any non-standard module.

A DEMO To Show How To Expand A Standard Python Terminal On The Fly... (Python)

2012-12-17T12:47:14-08:00

Python recipe 578383 by Barry Walker (apple, campimeter, demo, linux, macbook_pro, size, terminal, window).

This code shows how to open up a default Terminal running Python to tha maximum allowed on the _desktop_. I decided on writing code to do a crude emulation of a Campimeter. Anyone who has worn spectacles for a long time has had this test done at the optician's. Originally written for a Macbook Pro, OSX 10.7.5 but also tested on Debian Linux 6.0.x. READ the code for more information!!! This code WILL alter the size of the Terminal window AND changes the colours too, although it is very easy to return back to the default state it is NOT included in the code... I EXPECT professionals to know how to doo that.

Before running Python inside the Terminal ensure the Terminal window is at the uppermost left hand corner of your desktop...

I needed the maximised Python Terminal for something else but this was the easiest way to demonstrate ho to do it through Python...

Written so that kids can understand what is going on...

Enjoy finding simple solutions to often very difficult problems... ;o)

Bazza, G0LCU...

Position The Cursor Almost Anywhere Inside Standard Text Mode Python Terminal. (Python)

2012-06-17T17:10:29-07:00

Python recipe 578167 by Barry Walker (amiga, apple, cursor, demo, e_uae, linux, locate, macbook_pro, winuae).

A DEMO showing the power of the ANSI (ASCII) _Esc_ codes in standard text mode Python.

ANSI _Esc_ codes here:- http://www.termsys.demon.co.uk/vtansi.htm

There are only three important things from the ANSI _Esc_ codes that are needed to obtain a neat finish to a program written in standard text mode Python:-

1) Clearing the screen. (Already done without the dedicated ANSI _Esc_ code!)

2) Colours and other character attributes. (Already done!)

3) A forced printing of a character or string from a given location inside the Terminal window.

To clear the screen does NOT require another dedicated ANSI _Esc_ code, (although it exists). This code uses the print("\r\n") method which works in all cases coupled with the one function supplied......

For The Classic AMIGA, E-UAE, WinUAE and Linux using Python(s) 1.4.0 to Python 3.2.2. Read the code for more information...

Enjoy finding simple solutions to often very difficult problems...

Bazza, G0LCU.

A Shell, Binary To Hexadecimal To Decimal Demo... (Bash)

2013-01-11T18:31:03-08:00

Bash recipe 578413 by Barry Walker (apple, bash, binary, decimal, demo, hexadecimal, linux, macbook_pro, shell, terminal).

This little DEMO may be common knowledge to the big guns but not to amateurs like myself, so......

This is an Apple Macbbok Shell/Terminal DEMO shell script to show how to:-

1) Create a binary file... 2) Save it to your DEFAULT /directory/drwawer/folder/... 3) Display a hexadecimal dump of said binary file to prove that it is binary... 4) Select a single BYTE of that file and save it as an ASCII text decimal _number_, also to your DEFAULT /directory/drawer/folder/... 5) Read this ASCII text decimal number back in again... 6) Add this string representation to a number... 7) Stop...

It was intended purely for OSX 10.7.5 and above using the default terminal and shell...

It does work on many Linux flavours and shells/terminals also however.

Written so the anyone can understand what is going on.

The two files generated and saved in this DEMO to your DEFAULT /directory/drawer/folder/ are:-

BinaryString.dat BinaryString.txt

This WILL lead to something very unusual in the not too distant future...

This is Public Domain and you may do with it as you wish...

Enjoy finding simple solutions to often very difficult problems...

Bazza, G0LCU...

A DEMO 6 Bit At A Glance Colouerd Bargraph Generator. (Bash)

2013-01-16T12:26:55-08:00

Bash recipe 578391 by Barry Walker (analogue, anim, apple, bargraph, bash, beep, color, colour, demo, display, generator, linux, macbook_pro). Revision 2.

This code generates a horizontal coloured real time bargraph generator anim for a Macbook Pro 13 inch, OSX 10.7.5, using the default standard Terminal only.

It is UNTESTED on Linux variants but I would like any successful Linux tryers to make a comment in the comments section and tags will be added accordingly otherwise I will assume it does NOT work on other UNIX like variants.

It is a derivative of my 7 bit bargraph generator for Python on this site elsewhere.

The Terminal colours WILL be changed on running but it is simple to return it back to its original state.

Read the code for more information.

Enjoy, (and a Happy New Year)...

Bazza, G0LCU...

For AMIGA-Heads Only. Poking A HW, (Memory), Address On A Classic AMIGA, Inside Text Mode Python. (Python)

2012-09-09T19:25:00-07:00

Python recipe 578255 by Barry Walker (amiga, demo, e_uae, hardware, memory, poke, winuae).

For AMIGA-Heads Only...

This code is purely for a minimum of a stock Classic AMIGA A1200(HD), E-UAE, and WinUAE running AMIGA OS3.0x to 3.1x. It will NOT work on any other platform!

(It MIGHT work on AMIGA OS3.5x and 3.9x with Python 2.4.6, but totally untested and I hold no responsibility for the outcome when trying it.)

It is a DEMO to poke a byte inside _ANY_ memory address inside the standard CPU 68EC020 16MB boundary.

This is not a function nor a class but just a DEMO to show how to write directly to HW, (or memory), addresses.

POKING memory or hardware addresses is not recommended for novices without studying the machine first, and, this code will ignore any _ENFORCER_hits_.

I experimented with this several years ago and have decided to finally release it. I do await the flak!

It works from Python Versions 1.4.0 to 2.0.1 for the classic AMIGA.

This is issued as Public Domain and you may do with it as you please.

Ensure that the T: Volume exists on the running machine.

See inside the code and text below it also as to how it works...

Bazza, G0LCU...

For AMIGA-Heads Only. Peeking A Memory Address On A Classic AMIGA, Inside Text Mode Python. (Python)

2012-07-03T17:00:20-07:00

Python recipe 578189 by Barry Walker (amiga, demo, e_uae, peek, peeking, winuae).

For AMIGA-Heads Only...

This code is purely for a minimum of a stock Classic AMIGA A1200(HD), E-UAE, and WinUAE running AMIGA OS3.0x to 3.1x. It will NOT work on any other platform!

(It MIGHT work on AMIGA OS3.5x and 3.9x with Python 2.4.6, but totally untested and I hold no responsibility for the outcome when trying it.)

It is a DEMO to peek a byte inside _ANY_ memory address inside the standard CPU 68EC020 16MB boundary.

I experimented with this several years ago and have decided to finally release it. I do await the flak!

It works from Python Versions 1.4.0 to 2.0.1 for the classic AMIGA.

Ensure that the T: Volume exists on the running machine.

See inside the code and text below it also as to how it works...

Bazza, G0LCU...

Forwards Compatibility; Generating A Function On The Fly... (Python)

2012-06-06T17:16:27-07:00

Python recipe 578160 by Barry Walker (amiga, demo, e_uae, function, generator, linux, windows, winuae).

This code auto-generates a function that converts a string to bytes only in Python Versions 3.x.x. The function will NOT be generated in Python Versions 1.4.0 to 2.7.x. See the code for all the versions tested on. Inside the code are commented-out lines to show a practical usage for this and WILL be used in future /dev/audio or /dev/dsp access that I may develop...

See the notes right at the bottom and read all the notes inside the code...

This is NOT Public Domain like all my other stuff but is MIT licenced...

Enjoy finding simple solutions to often very difficult problems...

Bazza, G0LCU...

Colo(u)rs Inside Text Mode Python... (Python)

2012-08-21T21:01:57-07:00

Python recipe 578101 by Barry Walker (amiga, apple, color, colour, demo, display, e_uae, linux, macbook_pro, windows, winuae). Revision 2.

A simple DEMO to show how to enhance Python inside a Terminal. This works on Classic AMIGAs, E-UAE, Debian Linux 6.0.0, PCLinuxOS 2009, Windows XP and Vista and WinUAE, from Python 1.4.0 to 3.3A2.

Due to a complaint about my _fun_ upload recently I decided to post this so that the MANY can now find out how to manipulate text inside a Python Terminal window so that it looks much better.

Read the code for more information...

Enjoy finding simple solutions to often very difficult problems...

Bazza...

Markov Encryption Demonstration 2 (Python)

2012-03-14T17:39:17-07:00

Python recipe 578076 by Stephen Chappell (demo, demonstration, encode, encoding, encrypt, encryption).

This program is meant to act as an example of how to use ME with data that needs to be obfuscated. The functionality provided via the GUI demonstrates both the ability to encrypt and decrypt all text that the UTF-8 encoding can handle. Explanations come later.

Pure Fun For Text Mode Python... (Python)

2012-04-02T21:30:18-07:00

Python recipe 578079 by Barry Walker (apple, demo, display, linux, macbook_pro). Revision 2.

Printing to the screen with a difference. ;oD

Works on almost any version of Python running in a terminal inside Linux.

Markov Encryption Demonstration 1 (Python)

2012-03-16T18:59:06-07:00

Python recipe 578062 by Stephen Chappell (demo, demonstration, encode, encoding, encrypt, encryption).

This is a simple GUI program that shows Markov Encryption at work. It is built to be interactive and has all needed code embedded within itself. This version of ME library is not very efficient and represents an early attempt at developing and easily testing the code. Certain limits are built into the program, and the code is not meant to be robust at this stage. This program is a proof-of-concept design meant to ensure that the work being done was viable for future use and that the encryption process could be carried out both ways, both in encoding plaintext and decoding ciphertext.

Morse Code (Python)

2012-01-12T23:45:12-08:00

Python recipe 578012 by Stephen Chappell (demo, demonstration, example, experiment, morse, morse_code, program, sound). Revision 3.

After seeing another recipe recently that helps people with Morse Code, I was inspired to clean up the following code just a bit to make it worthy for the rest of the world. After being executed, it waits for lines of text to be entered, compiles each one in turn into timing codes, and plays them back with a simple execution

Kids Level Analogue Data Logger, (Transient Recorder), Program. (Python)

2011-07-31T16:14:48-07:00

Python recipe 577796 by Barry Walker (amiga, analogue, anim, apple, arduino, data, demo, display, e_uae, linux, logger, macbook_pro, program, windows, winuae). Revision 2.

This code is kids level Analogue Data-Logger(/Transient-Recorder), using the Arduino series of dev' boards.

It is no where near completion and is a second feeder/feeler upload only.

It is designed to work from Classic Text Mode Python from Versions 1.4.0 to 2.7.2 on a Classic AMIGA, WinUAE, Linux and Windows, (32 bit), to Vista. Not tested on Python for Windows 7, (32 bit), nor Mac OSX flavours as I don't have these OSes.

Linux versions run from a default root terminal for the time being.

The Arduino dev' board IS catered for in the code for the above platforms just thoroughly read the code for more information. It defaults to a DEMO mode so you can see it working...

The test code for the Arduino Diecimila Dev Board is here:-

http://code.activestate.com/recipes/577625-arduino-diecimila-board-access-inside-winuae-demo/

Enjoy finding simple solutions to often very difficult problems... ;o)

Bazza, G0LCU...

Banner (Python)

2011-01-11T05:16:12-08:00

Python recipe 577537 by Raymond Hettinger (banner, demo, formatting, printing). Revision 2.

Easily customizable banner program.

SimpleTron3x.py "Game" To DEMO XY Drawing Using The Keyboard In Standard Text Mode Python. (Python)

2011-05-29T14:28:19-07:00

Python recipe 577728 by Barry Walker (anim, demo, display, game, linux).

SimpleTron3x.py.

This code is a FUN program only to DEMO how to draw in a text mode Python shell.

There is an inkey() "function" extracted from a "class" recipe on this site. See code for more information.

This was tested on PCLinuxOS 2009 with Python 3.0.x and Debian 6.0.0 with Python 3.1.x.

This ASSUMES an 80 x 24 Python shell window.

Issued as Public Domain, you may do as you like with this code.

Enjoy finding simple solutions to often very difficult problems.

Bazza...

For AMIGA-Heads Only. PAR: As A VOLUME In READ Mode Only. (Python)

2011-06-12T16:34:12-07:00

Python recipe 577750 by Barry Walker (amiga, demo, parallel, parallel_port, port, read).

PAR: as a VOLUME in READ mode using Python 1.4 onwards on Classic AMIGAs...

Many years ago Irmen de Jong ported Python to the Classic AMIGA range of computers, (many thanks Irmen for your time in doing so). The versions were at least 1.4.x to 2.0.1 and now someone else has included version 2.4.6.

This gives we lowly users of the AMIGA at least a chance to see and use Python in some guise or another. This code shows how to access the AMIGA parallel port for 8 bit READ only. This is so that ADCs could be attached to the port, read by Python code EASILY and utilised as a Data Logger/Transient Recorder, as just one example.

There needs to be a single HW WIRE link only from the 23 way video port to the 25 way parallel port for this to work. See the archive......

http://aminet.net/package/docs/hard/PAR_READ

......on how to set about this extremely simple task.

NO knowledge of the parallel port programming is needed at all to grab 8 bit data from it using Python and other languages; (ARexx is used in the archive above).

There is a flaw, NOTE:- NOT A BUG!, in the Python code but for this DEMO it is ignored. ;o)

I'll let all you big guns work out what it is; you will need a good working knowledge of the Classic AMIGA.

Enjoy finding simple solutions to often very difficult problems. ;o)

This code is Public Domain and you may do with it as you please.

Bazza...